Transcript Freshwater Fish Species

Freshwater Fish
Species
Agriscience 381
2nd Period
By: Dustin Carnahan
Objectives
Students will be able to:
1. Label the external parts of a fish.
2. List and describe five types of freshwater
fish found in Texas.
Freshwater fish are those species that live in
waters from 0 to 5 (parts per thousand)
salt content.
This includes rivers, streams, creeks, lakes,
ponds, and reservoirs.
Game Fish Species
Game fish are regulated by the Texas Parks and
Wildlife Department.
They are mainly predators even though they
may eat vegetation.
Many species have natural hybrids. “They cross
and mate between two similar species.”
In the case of the Florida largemouth bass and
the hybrid striped bass, human involvement was
incurred.
Regardless if the species is pure or a hybrid, all
game fish have a statewide bag limit and have
many length limits.
Freshwater Fish
Identification
Bass
Largemouth Bass
Widely distributed in
lakes and streams
Green with dark
blotches running
down the sides
Dorsal fin is almost
divided, containing
12-13 rays.
When mouth is
closed, the upper jaw
extends beyond the
posterior of the eye.
Smallmouth Bass
 Golden green sides and back, wavy olive blotches along
side
 There are five olive-green bars that radiate back and one
radiates forward from each eye.
 Trophy size only reach 3-4 lbs.
 Feeds on small fish, crustaceans, and large insects, but
will also feed on forage.
 Prefer flowing water but, can be found in lakes.
Hybrid Striped Bass
Cross between striped bass and white bass.
Adults range from 6 to 60 lbs.
Sharp points on tips of gill covers
Has 7-8 horizontal stripes on sides, referring to
the name.
White Bass
 Originally found only in
waters of Caddo Lake in
far East Texas.
 Has double dorsal fin,
front spiny fin is
separated from rear softrayed portion.
 Dark gray to black on
back and bright silver on
sides and white belly.
 Dusky stripes run length
of body.
 Adv. size 1 to 1 ½ lbs.
Yellow Bass
Gets name from color
on belly and sides.
Bottom two stripes
are broken slightly
behind the middle.
Travels in schools.
Likes rocky and gravel
bottoms.
Feed on fish, insects,
and crustaceans.
Less than 1 pound
Catfish
Channel Catfish
Native to all streams and rivers.
Forked tail, distinguishes from all other catfish
except (Blue Catfish).
Silvery gray in color, silvery white on belly
Small black spots found on sides, but they
become absent in large adults.
Blue Catfish
 Range in color from
slate-blue to grayish
brown on their back
and sides.
 Forked tail
 Reach up to 300 lbs.
 Big river fish
 Prefer clear fast
moving water with
hard sand, or gravel
bottoms.
 Feeds on shad and
other schooling
baitfish.
Flathead Catfish
Yellow Bullhead
Crappie
Crappie
White Crappie
Silvery green, silver-
white belly
Vertical bars on sides
Dorsal fin has max of
6 spines.
Black Crappie
Black blotches
Not statewide, found
in East Texas
Trout
Rainbow Trout
 Cold-water species, stocked
annually in Texas waters.
 Body shape like a salmon.
 Dark Olive back color, speckled
sides, has pink to red stripe
along the length of side.
 Carnivores, feed on insects
crustaceans, mollusks and fish.
 Live in saltwater but return to
rivers to breed.
 Can survive when confined to
freshwater.
Walleye
Member of perch
family.
Large eyes, two
separate dorsal fins.
Cold-water species
Dark blotches on a
yellow-greenish
brown base.
Reach 12-15 lbs.
State Record 25 lbs.
Summary
1. 5 types of freshwater species
• Bass, Catfish, Crappie, Trout,
2.
•
Walleye
Labeling external fish parts.
Dorsal Fin, Caudal Fin, Anal Fin,
Pelvic Fin, Pectoral Fin, Operculum